Impact of radio irregularity on wireless sensor networks
Proceedings of the 2nd international conference on Mobile systems, applications, and services
On accurate measurement of link quality in multi-hop wireless mesh networks
Proceedings of the 12th annual international conference on Mobile computing and networking
NSDI'04 Proceedings of the 1st conference on Symposium on Networked Systems Design and Implementation - Volume 1
On exploiting asymmetric wireless links via one-way estimation
Proceedings of the 8th ACM international symposium on Mobile ad hoc networking and computing
Scalable versus Accurate Physical Layer Modeling in Wireless Network Simulations
Proceedings of the 22nd Workshop on Principles of Advanced and Distributed Simulation
Is RSSI a Good Choice for Localization in Wireless Sensor Network?
AINA '12 Proceedings of the 2012 IEEE 26th International Conference on Advanced Information Networking and Applications
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Most existing routing protocols designed for WSNs assume that links are symmetric, which is in contradiction with what is observed in the real deployment. Indeed, many links in WSNs are asymmetric. Asymmetric links can dramatically decrease the performance of routing algorithms which are not designed to cope with them. In this paper, we propose two adaptations, A-RPL and A-Legos, respectively for RPL and Legos convergecast routing protocols to take into account the asymmetric links. The two protocols construct a logical topology over which the data will be sent in the network. This logical topology could be disconnected when asymmetric links are present in the network. We propose a new metric calculation for RPL protocol to take into account the asymmetric links. For A-Legos, we introduce two new states for nodes when asymmetric links are detected.